Twitterrific has been updated to version 5.7.2 which adds a new "edit tweet" feature. It lets you delete a tweet, and then it opens up an edit screen. Also, make sure to shake your phone while Twiterrific 5.7.2 is on the theme panel.

A few University of Pennsylvania students have come up with a way to push Siri commands through a proxy, opening up a whole host of real-world actions for it to take. The service, which they're calling GoogolPlex (good luck keeping that name) is interesting, but I'm not convinced it's quicker than just turning on the lights yourself.